try it this way
https://hyperion-project.org/w…-V42L-Grabber-USB-Grabber
it is also a video0...try to make a screenhsot
this is the output?
pi@raspberrypi:~ $ sudo hyperion-v4l2 --width 320 --height 180 --screenshot
hyperion-v4l2:
version : V1.03.4 (brindosch-c750c41/dc6a602-1522918225
build time: Apr 5 2018 01:57:25
V4L2GRABBER INFO: width=640 height=480
V4L2GRABBER ERROR: Only pixel formats UYVY, YUYV, and RGB32 are supported ERROR
this is -lshw output
*-usb:1
description: Video
product: ezcap U3 capture
vendor: VXIS Inc
physical id: 3
bus info: usb@1:1.3
version: 1.00
capabilities: usb-2.10
configuration: driver=snd-usb-audio maxpower=500mA speed=480Mbit/s
This is what -v4l2-ctl --all outputs.
pi@raspberrypi:~ $ v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : ezcap U3 capture
Bus info : usb-20980000.usb-1.3
Driver version: 4.9.35
Capabilities : 0x84200001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'MJPG'
Field : None
Bytes per Line: 0
Size Image : 614400
Colorspace : SRGB
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 640, Height 480
Selection: crop_bounds, Left 0, Top 0, Width 640, Height 480
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
brightness (int) : min=0 max=255 step=1 default=-8193 value=128
contrast (int) : min=0 max=255 step=1 default=57343 value=128
saturation (int) : min=0 max=255 step=1 default=57343 value=128
hue (int) : min=-32 max=31 step=1 default=-8193 value=0
brightness (int) : min=0 max=255 step=1 default=-8193 value=128
contrast (int) : min=0 max=255 step=1 default=57343 value=128
saturation (int) : min=0 max=255 step=1 default=57343 value=128
hue (int) : min=-32 max=31 step=1 default=-8193 value=0